Confidence votes 210. Antigone is considered a tragic hero, because tragic heroes have several qualities: They are royal, they have a tragic flaw that leads to their downfall, they have an unhappy ending, and lastly the character is worthy of concern. First, Antigone is royalty. This is shown through her bloodline in several ways.
The down feathers of eider ducks provide insulation due to lack of barbules and ability to fluff. Infrared image of a goose, showing its insulating capacities. Down feather structure is important for insulating properties. Eiders insulate their arctic nests with down feathers. Click/tap images for attribution and license information.
For down and feathers, use the air cycle and dry thoroughly. Dampness left in a pillow can lead to mold, so its important to make sure pillows are completely dry. For synthetics, use the low heat setting as high heat can cause clumping. You can throw in a few clean, thick dry towels to help absorb some of the moisture, for faster drying.